John S. Crowder

B. H. Brown

B. H. Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Iver Samuelson

Iver Samuelson worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Chester A. McConaghy

William S. Hartnett

Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.